Quadcopter arm Replacement

thingiverse

Quadcopter/hexacopter arm replacement designed to reduce propeller resistance features a round shape. It is engineered specifically for 2212 motors at 920KV and GF2215/20 models. Additionally, the oval shape of the design helps minimize bending and flipping compared to flat versions. Quad_leg_2212_920KV_hole_for_wires_oval boasts an added center oval hole with dimensions 6x4x4 mm. Quad_leg_2212_920KV_9_20150111, a modified version featuring removed legs and increased resistance in the perpendicular direction parallel to motor axis, aims to correct imbalances causing bending vibrations in that axis. When propellers on unbalanced motors generate these distortions, perpendicular vibrations occur. Instructions for printing are as follows: - Material: Green ABS. - Layer Height: 0.2 mm - Nozzle Size: 0.3 mm - Fill Pattern: Rectilinear - Fill Density: 30% - Vertical Shells: 3 - Horizontal shells Top/Bottom: 3 - Original weight: approximately 52 g (dark red at 53 g) It is recommended to print these designs at a 45-degree angle relative to the Z-axis, especially considering the size of the heatpad. Printing in such an orientation results in a fill pattern designed using Slic3r angled accordingly. Tests were conducted on different material setups: - When printed with green ABS (oval hole size 6x4x4 mm) and layer settings specified, the quadcopter leg's weight is around 31.42 g. - With white PLA at a 30% infill density, it reaches a weight of approximately 33.92 g. It appears more flexible than versions printed in ABS due to its increased ease of bending. - In contrast, testing showed the arm was slightly heavier with 25% infill (PLA) at ~31.2 g. The leg of the quadcopter's arm remains a weak point susceptible to easy breaking. To address this, upcoming revisions are set to have thicker legs for enhanced support and resilience. Quad_leg_2212_920KV_V201506 is designed with a reduced body thickness combined with strengthened legs, specifically in contact areas near the motors (not yet printed). Testing with 20% infill on PLA yields a total weight of approximately 29.79 g while maintaining comparable strength compared to older designs. As such, when printed in ABS, one could anticipate a similar design to weigh roughly 2-3 grams lighter.